Frank
For some accounts there is a visual bug in the countdown. Instead of switching from X days 0 hours 0 minutes to X-1 days 23 hours 59 minutes it just goes to X days 23 hours 59 minutes until somewhere around X days 20 or 21 hours the counter finally lowers the day count by one to the correct amount.
No worries, it's only visual. The upgrade finishes in time for the original schedule.
An annoying error, I would have spent 5 tokens in the last 24 hours, but with this bug there is no way because it only shows a 10 token button. Anyway, thanks for the explanation.